DE2355030B2 - CARRYING DEVICE FOR ONE OR MORE FORMS IN A MACHINE FOR THE MANUFACTURE OF GLASSWARE - Google Patents

Description

45

The invention relates to a support device according to the preamble of claim 1.

There are already carrying devices of the type mentioned Hach of the DT-AS 12 58 034 and the DT-OS 15% 582 known, in which an attempt is made to achieve the same closing forces mechanically. Here is Note that the mold halves can have considerable vertical dimensions, and that is desirable * vird that the mold halves are kept closed at the top and bottom by the same forces. It has However, it has been found that this is due to the heavy wear and the required play of the suspension devices associated Schwenkstifkn ho is not possible, which is necessary for proper operation designed at room temperature and at about 130 to 230 ° C must be. As a result, the pivot pins can skew with respect to the arms, resulting in misalignment of the mold halves.

The object of the invention is therefore to provide a comparatively improved device which the Exercise of the same clamping forces on all areas of the mold halves with different designs and dimensions enables. This is achieved by what is specified in the characterizing part of claim 1 Characteristics.

When the mold halves are pressed against each other in the device according to the invention, represents a pressure acting on all pistons in the lines containing the hydraulic fluid, which the causes the same contact force for the mold halves. There are no swivel lifts or similar components here necessary.

Embodiments of the invention are described in more detail with reference to the drawings. Ls shows

F i g. 1 shows a plan view of two mold carrier arms of a device according to the invention, one arm is partially shown in horizontal section to illustrate design features,

F i g. 2 is a vertical cross-section along the line 2-2 of FIG. 1;

F i g. 3 is a vertical cross-section along the line 3-3 of FIG. 1, the mold halves also being shown are,

FIG. 4 is a view similar to FIG. 3, however Pistons for the devices responding to hydraulic fluid instead of the bellows according to FIG. 3 used will.

The F i g. 1 shows two cooperating mold support arms 10 and 12 of a known machine for the production of glassware, which are mounted around a common vertical pin 14 for a closing movement in the direction towards one another or for an opening movement in a direction away from one another in a horizontal plane. In further accordance with the known embodiment, each arm is actuated by means of a mechanical linkage 16, which is shown for the arm 12. The mechanical linkage 16 comprises toggle levers 18 and 20 which are articulated together at one end by means of a pin 22, while the other end of the lever 18 is articulated by means of a pin 24 on the machine frame and the other end of the lever 20 by means of a pin 26 on the arm 12 is hinged. If the mechanical linkage 16 associated with the arm 12 is operated to reduce the angle (a) between the lines connecting the centers of the pins 22 and 26 with the pin 24, this arm is moved towards its closed position, and if so the angle is increased, the arm is moved towards its open position. Any known device (not shown) can be used to operate the linkage 16 to simultaneously open and close the arms 10 and 12.

According to the preferred embodiment, each arm 10 has an upper horizontal section 10.7 and a lower horizontal section 106, which with one another via an integrally formed vertical strut 10c are connected and similarly each arm 12 has an upper portion 12a and a lower portion 126, which are connected to one another via a strut 12c. Each arm 10 and 12 is for receiving formed a plurality of mold halves spaced from one another along its length. Each arm can e.g. B. three Wear mold halves for cooperation with three complementary mold halves on the other arm.

In particular, the top part or section is any Arm is provided with three spaced hooking devices 28 and the lower section or part of each arm has three in Absland of-

suspension devices 30 arranged one above the other, which are arranged below the suspension devices 28 are, so that in each case a suspension device 28 and an associated suspension device 30 a Carrying mold half, see z. B. the mold halves 32 and 34 in fig. 3 and 4. The shapes shown 32 and 34 are the complementary halves of the last mold location and of course three are identical mold halves 32 arranged along the arm 12 and three complementary mold halves 34 are provided on the arm 10.

It is essential that each mold half for limited relative movement with respect to its associated Support arm 12 is arranged, while each mold half 34 also has a limited relative movement in reference to the support arm 10 can perform. In particular, each mold half has a downward facing Flange 36 is provided which protrudes into the upper suspension device 28 of the associated arm. The mold half can move so far in relation to the assigned arm and the suspension device, until the wall 38 of the mold half strikes one side of the edge 40 of the suspension device 28 or until the wall 42 of the mold half comes into contact with the other cord of the rim 40. Furthermore is a screw 44 provided with a flat, protruding head 46 is screwed into each mold half, so that the lower end of the mold half can move with respect to the suspension device 30 until the Head 46 of the screw either one or the other side of a groove 48 in the lower hanger 30 touched. Each of the complementary mold halves 32 and 34 is thus on the arm 12 or 10 arranged so that it can move a limited amount with respect to the associated arm.

The complementary mold halves movably supported in this way come into contact with one another brought, as shown in FIG. 3 and 4 is shown. by pressing against each other vigorously, which is achieved by the mechanical actuation of the actuating linkage 16 associated with each arm.

According to the present invention, each arm is provided with special means to exert equal forces on the mold halves assigned to it in order to press them against the complementary mold halves. For this purpose, each arm is provided with pressure elements that respond to hydraulic fluid for exerting the same fluid pressure on all associated mold halves; each of said pressure responsive fluid pressure elements ^s loading ° stirs the associated mold half and directly exerts a force of the same, if the Formhällte moved relative to the arm.

In the F i g. 1, 2 and 3 insist on hydraulic fluid appealing pressure elements each consist of a bellows 50. Each of these bellows 50 is movable mounted in the arm 12 and protrudes inwardly therefrom for contact with the associated mold half 32 or 34, as in FIG. 3 is shown. All bellows or other pressure elements that respond to hydraulic fluid are interconnected by a closed channel 52, and it can be seen that each a bellows 50 in the upper part of the arm and a bellows 50 in the lower part of the arm for each Mold half is provided. Accordingly, the channel comprises one through the strut 10c or 12c each arm extending section and furthermore each channel has a horizontally extending section in each arm section.

The channel 52 is provided with an inlet 54 (FIG. 1) and an outlet 56 for filling in pressure fluid wedge in the canal. If the arms 10 and 12 are firmly closed to press the mold halves together 32 and 34, liquid can be filled in through the opening 54 under sufficient pressure, to move the arms 10 and 12 back so that the mold halves 32 and 34 are free to move from the arms are held, but by the bellows 50 under the Effect of the hydraulic fluid remain firmly pressed against each other. If the floating bracket of the Mold halves is reached, no further liquid pressure is required and the inlet 54 can be closed so that the pressure fluid remains in the channel 52. Then if the arms are opened the bellows 50 expand and the channel 52 remains essentially filled with pressurized fluid.

All pressure elements or bellows 50 which respond to hydraulic fluid and which are attached to the common channel 52 are connected, practice the same during the forceful compression ^ of the mold halves Apply pressure to hold the mold halves in the closed position.

The embodiment according to FIG. 4 corresponds essentially to that according to FIGS. 1 to 3, with the Exception that pistons 60 are used in place of the bellows 50 in each of the pressure elements. If Pistons are used, they are movably arranged in a chamber 62 formed in the mold support arm, and this chamber 62 is like all of them other similar chambers connected to the common channel 52.

As can be seen in particular from FIG. 1, the linkage associated with the mold carrier arms 10, 12 can be set to such an optimal angle α that the best possible alignment of the pressure elements comprising the pistons 60 or bellows 50 with respect to the mold halves in a row can be achieved.

For this purpose 3 sheets of drawings

Claims (5)

Patent claims: 1. Carrying device for one or more forms in a machine for making glassware, with two at one end around a vertical axis pivoted, horizontal arms, which can be closed and opened towards each other are movable to and away from each other and with hanging devices arranged on the arms for the mold halves, characterized in that that the mold halves (32, 34) with respect to the suspension devices rigidly attached to the arms (10, 12) (28, 30) are movable, pressure elements acting on the arms against the mold halves (50; 60) are provided and in each case the rear sides of all pressure elements of an arm via a closed. Pressure fluid contained de line (52) are in communication with each other. 2. Support device according to claim 1, characterized in that each arm (10, 12) has an upper one Section and a lower section (10a, 106, 12a, 126), which via a vertical strut (10c, 12c) are connected to each other, and the line (52) through the strut to connect the On the upper section of the arm provided pressure elements (50; 60) with those on the lower section of the arm provided pressure elements runs. 3. Carrying device according to one of claims 1 or 2, characterized in that each arm (10. 12) has a closable filler opening (54) for the pressure fluid. 4. Carrying device according to one of claims 1 to 3, characterized in that each pressing element designed as a piston (60) and directly on its rear side in the piston chamber (62) exposed to fluid pressure. 5. Carrying device according to one of claims 1 to 3, characterized in that with each pressure element a bellows on the back of each piston to transfer the fluid pressure (50) is provided.